I dumped my STi Clutch, PP and Flywheel. I installed the ACT HD Street Clutch with Streetlight Flywheel. It is so much better than the Sti isht it's not funny. It's not even close. And less money too (as I watch over 1k in STi parts go down the drain after 20k)
I've now driven the ACT clutch/flywheel combination for 40 miles. I know that's not much, but I can't tell you what a difference it has made with the car. Together with the RA Gearset, I am so much happier with my car. This is the way the car should have come from Subaru!